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Finding the Fourth Proportional to 476,653.41, 715,004.72 and 121,670.51

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Solution

The fourth proportional to 476,653.41, 715,004.72 and 121,670.51 is: 182,512.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,653.41 : 715,004.72 = 121,670.51 : x
  2. Step 2: Convert to fraction form
    476,653.41/715,004.72 = 121,670.51/x
  3. Step 3: Cross multiply
    476,653.41x = 715,004.72 × 121,670.51
  4. Step 4: Simplify right side
    476,653.41x = 86,994,984,751.43
  5. Step 5: Solve for x
    x = 86,994,984,751.43/476,653.41
  6. Step 6: Final answer
    x = 182,512.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.